CN108972446B - Machine for replacing cap in front and back - Google Patents
Machine for replacing cap in front and back Download PDFInfo
- Publication number
- CN108972446B CN108972446B CN201811030633.1A CN201811030633A CN108972446B CN 108972446 B CN108972446 B CN 108972446B CN 201811030633 A CN201811030633 A CN 201811030633A CN 108972446 B CN108972446 B CN 108972446B
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- cap
- claw
- rod
- hinged
- turntables
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automatic Assembly (AREA)
- Devices For Opening Bottles Or Cans (AREA)
Abstract
The invention relates to the technical field of welding, in particular to a positive and negative cap removing and replacing machine which comprises a shell, a cap grabbing assembly, a power assembly and a damping assembly, wherein two cylinders are adopted as drivers through the cooperation of the power assembly and the damping assembly to drive the cap grabbing assembly to complete the action of positive and negative cap removing, so that the positive and negative cap removing can be conveniently and rapidly realized, the structure is simple, and the operation and the control are convenient.
Description
Technical Field
The invention relates to the technical field of welding, in particular to a cap replacement machine capable of being disassembled positively and negatively.
Background
At present, the welding gun is in threaded connection with the electrode rod, and the electrode cap and the electrode rod are in conical surface tight fit, so that when the electrode cap is dismounted, in order to prevent the electrode rod from being dismounted or loosened together, the best cap dismounting action is based on the principle of 'knob' cap dismounting, namely the electrode cap is dismounted along the direction of the screw thread of the electrode rod, namely the knob is dismounted along the screw thread screwing direction of the electrode rod, and therefore, the dismounting directions of the electrode caps on the upper electrode rod and the lower electrode rod are opposite. The existing knob type cap removing and replacing machine can only disassemble the electrode caps basically along one direction knob, so that when the electrode caps on the upper electrode rod and the lower electrode rod are disassembled, the disassembling procedure of the existing cap removing and replacing machine is complicated and time-consuming, and the cap removing and replacing machine can realize positive and negative bidirectional cap removing, but has a complex structure and is inconvenient to control.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention aims to provide a positive and negative cap-dismantling and replacing machine, which not only can realize positive and negative bidirectional disassembly of the electrode cap, but also has a simple structure and is convenient to operate.
The task of the invention is realized by the following technical scheme:
the utility model provides a positive and negative cap change machine of tearing open, including the casing, grab cap subassembly, power pack and damping subassembly, power pack includes a swivel and can drive the first actuating mechanism of the reciprocal pivoted of swivel relative casing, damping subassembly includes at least one carousel and can drive the reciprocal pivoted of relative casing of carousel, grab cap subassembly includes a plurality of movable jack catch, the preceding terminal surface both sides of each jack catch all are equipped with the angle, each jack catch distributes along the inner circle circumference of swivel, the rear end of each jack catch respectively with the inner circle of swivel articulated around first axial, the preceding terminal surface of each jack catch encloses into the dismantlement passageway, the carousel sets up in grabbing cap subassembly's side, each jack catch still respectively with the carousel articulated around second axial, first axial and second axial interval set up and all be parallel to the axle center of swivel, all be equipped with the through-hole that the intercommunication dismantlement passageway passed through in order to supply electrode cap on the carousel, the swivel can drive each jack catch around second axial rotation, thereby make the diameter that the common envelope of the corresponding side angle of each jack catch reduces and embracing in the dismantlement passageway electrode cap and drive electrode cap rotation.
Preferably, the first driving mechanism comprises a power cylinder and a first connecting component, the power cylinder is fixedly connected with the shell, and a piston rod of the power cylinder is connected with the periphery of the swivel through the first connecting component and can drive the swivel to rotate in a reciprocating manner; the second driving mechanism comprises a damping cylinder and a second connecting component, the damping cylinder is fixedly connected with the shell, a piston rod of the damping cylinder is connected with the periphery of the rotary table through the second connecting component and can drive the rotary table to reciprocally rotate, and the rotating angle range of the rotary table driven by the damping cylinder is the same as the rotating angle range of the rotary ring driven by the power cylinder.
Preferably, the first connecting component comprises a first connecting rod and a first force arm rod, one end of the first connecting rod is hinged with a piston rod of the power cylinder, the other end of the first connecting rod is hinged with one end of the first force arm rod, and the other end of the first force arm rod is fixedly connected with the periphery of the swivel; the second connecting assembly comprises a second connecting rod and a second force arm rod, one end of the second connecting rod is hinged with a piston rod of the damping cylinder, the other end of the second connecting rod is hinged with one end of the second force arm rod, and the other end of the second force arm rod is fixedly connected with the periphery of the rotary disc.
Preferably, the damping assembly comprises two turntables, the two turntables are respectively located on the upper side and the lower side of the grabbing cap assembly, the two turntables are fixedly connected through a connecting column, the clamping jaw and the swivel are located between the two turntables, and the other ends of the second connecting rods are respectively hinged with the second force arm rods of the two turntables.
Preferably, the shell is internally provided with two lantern rings, the two lantern rings are respectively sleeved on the periphery of the turntable to radially limit the turntable, the outer end faces of the lantern rings are respectively fixedly connected with the shell, the inner end faces of the lantern rings are abutted against the end faces of the swivel rings to axially limit the swivel rings, and the side faces of the lantern rings are respectively provided with a slot for the second force arm rod of the corresponding turntable to pass through and rotate in.
Preferably, the thickness of one side of the collar, which is close to the insertion side of the housing, is smaller than the thickness of the opposite side, and the insertion side of the housing is provided with a slot communicating with the disassembly channel, so that the thickness of the insertion side of the housing is smaller than the thickness of the opposite end.
Preferably, the front end surface of the claw is of a concave arc structure, and the corners are formed at two ends of the concave arc structure.
Preferably, the rear end of the claw and the inner ring of the swivel are hinged in the following manner: the rear end of the claw is convexly extended into a circular arc-shaped bulge, the inner ring of the swivel is provided with a corresponding circular arc-shaped groove, and the circular arc-shaped bulge is embedded into the circular arc-shaped groove and can rotate relatively.
Preferably, the hinging manner of the claw and the turntable is as follows: the middle part of the claw is provided with a hinge shaft, the turntable is provided with a corresponding shaft hole, and the claw is hinged with the turntable through the cooperation of the hinge shaft and the shaft hole.
Preferably, the positive and negative cap removing and replacing machine is further provided with an electrode cap sensor, and the electrode cap sensor is fixedly arranged on the shell.
According to the positive and negative cap disassembly and replacement machine, the power assembly and the damping assembly are matched, the two cylinders are used as the drivers, and the cap grabbing assembly is driven to finish the action of positive and negative cap disassembly, so that the positive and negative cap disassembly can be conveniently and rapidly realized, the structure is simple, and the operation is convenient.
The conception, specific structure, and resulting effects of the present invention will be further described with reference to the accompanying drawings to fully understand the objects, features, and effects of the present invention.
Drawings
FIG. 1 is a schematic diagram of a front-back cap changer according to the present invention;
FIG. 2 is an exploded view of FIG. 1;
FIG. 3 is a schematic view showing the internal structure of the front-back cap removing and replacing machine of the present invention in the initial state before the front cap removing.
Wherein: the shell 1, the upper half shell 11, the lower half shell 12, the insertion side 13, the opening 14, the cap grabbing component 2, the claw 21, the arc-shaped protrusion 211, the hinge shaft 212, the corner 213, the power component 3, the swivel 31, the arc-shaped groove 311, the power cylinder 32, the first connecting rod 33, the first force arm 34, the damping component 4, the turntable 41, the shaft hole 411, the damping cylinder 42, the second connecting rod 43, the second force arm 44, the connecting post 45, the collar 5, the slot 51, the slot 52, the electrode cap sensor 6, and the disassembly channel 7.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the description of the specific embodiments is intended for purposes of illustration only and is not intended to limit the scope of the present disclosure.
As shown in fig. 1-2, the front-back cap removing and replacing machine comprises a shell 1, a cap grabbing assembly 2, a power assembly 3 and a damping assembly 4.
The power assembly 3 comprises a swivel 31 and a first driving mechanism capable of driving the swivel 31 to reciprocally rotate relative to the shell 1, the first driving mechanism comprises a power cylinder 32 and a first connecting assembly, the power cylinder 32 is fixedly connected with the shell 1 and is arranged outside the shell 1, and a piston rod of the power cylinder 32 is connected with the periphery of the swivel 31 through the first connecting assembly and can drive the swivel 31 to reciprocally rotate; the first connecting assembly comprises a first connecting rod 33 and a first force arm rod 34, one end of the first connecting rod 33 is hinged with a piston rod of the power cylinder 32, the other end of the first connecting rod is hinged with one end of the first force arm rod 34, and the other end of the first force arm rod 34 is fixedly connected with the periphery of the swivel 31.
The damping component 4 comprises two turntables 41 which are oppositely arranged and a second driving mechanism which can drive the turntables 41 to reciprocally rotate relative to the shell 1, the two turntables 41 are fixedly connected through four connecting columns 45, the second driving mechanism comprises a damping air cylinder 42 and a second connecting component, the damping air cylinder 42 is fixedly connected with the shell 1 and is arranged in the shell 1, a piston rod of the damping air cylinder 42 is connected with the periphery of the turntables 41 through the second connecting component and can drive the turntables 41 to reciprocally rotate, and the angle range of the damping air cylinder 42 for driving the turntables 41 to rotate is the same as the angle range of the power air cylinder 32 for driving the swivel 31 to rotate; the second connecting assembly comprises a second connecting rod 43 and two second force arm rods 44 corresponding to the two turntables 41, one end of the second connecting rod 43 is hinged with a piston rod of the damping cylinder 42, the other end of the second connecting rod is simultaneously hinged with one ends of the two second force arm rods 44, and the other ends of the two second force arm rods 44 are fixedly connected with the peripheries of the two turntables 41 respectively.
The grabbing cap assembly 2 comprises four movable claws 21, each claw 21 is distributed along the circumferential direction of the inner ring of the rotary ring 31, the rear end of each claw 21 respectively protrudes and stretches into a circular arc-shaped protrusion 211, the inner ring of the rotary ring 31 is provided with a corresponding circular arc-shaped groove 311, and the circular arc-shaped protrusions 211 are embedded into the circular arc-shaped grooves 311 and can rotate relatively so as to realize the hinge joint of the rear end of each claw 21 and the inner ring of the rotary ring 31; the two turntables 41 are respectively arranged on the upper side and the lower side of each claw 21, the middle part of each claw 21 is provided with a hinge shaft 212, the two turntables 41 are provided with corresponding shaft holes 411, and the claws 21 are hinged with the turntables 41 through the cooperation of the two ends of the hinge shaft 212 and the shaft holes 411; the front end face of each claw 21 is of a concave arc structure, corners 213 capable of clamping the electrode caps are formed at two ends of the concave arc structure, the front end faces of the claws 21 are enclosed to form a disassembly channel 7, and through holes which are communicated with the disassembly channel 7 to pass through the electrode caps are formed in two sides of the shell 1 and the turntable 41; the rotation of the swivel 31 can drive each claw 21 to rotate around the hinge shaft 212, so that the diameter of the common envelope of the corresponding side corners 213 of each claw 21 is reduced to hold the electrode cap in the dismounting channel 7 and drive the electrode cap to rotate.
The casing 1 includes upper half shell 11 and lower half shell 12 that can dismantle the connection, still is equipped with two lantern rings 5 in the casing 1, two lantern rings 5 cover respectively in two the periphery of carousel 41 is in order to carry out radial spacing to carousel 41, the outer terminal surface of two lantern rings 5 respectively with the upper and lower both sides fixed connection of casing 1, the interior terminal surface butt swivel 31's terminal surface is in order to carry out axial spacing to swivel 31, and the side of each lantern ring 5 all is equipped with the confession and corresponds carousel 41's second power armed lever 44 and pass and rotate fluting 51 wherein. The design enables each claw 21, the swivel 31 and the rotary table 41 to be tightly assembled in the shell 1 through the lantern ring 5, meanwhile, the rotation of each claw 21, the swivel 31 and the rotary table 41 is not affected, the lantern ring 5 is tightly attached to the rotary table 41 and is processed with high precision, and accordingly the rotary table 41 can smoothly rotate relative to the lantern ring 5 and does not shake.
The collar 5 is provided with a slot 52 on one side near the insertion side 13 of the housing 1, so that the thickness of the collar 5 is smaller than that of the other opposite side, and the insertion side 13 of the housing 1 is provided with an opening 14 communicating with the disassembly channel 7, so that the insertion side 13 of the housing 1 is smaller in thickness, and the opening between the upper electrode rod and the lower electrode rod of the smaller welding gun can be inserted, and the disassembly operation of the electrode cap can be performed.
The positive and negative cap removing and replacing machine is further provided with an electrode cap inductor 6, the electrode cap inductor 6 is fixedly arranged on the shell 1, and the electrode cap inductor 6 is used for inducing whether an electrode cap exists on an electrode rod of the welding machine and sending a signal to the controller, so that the normal operation of the cap removing and replacing machine is ensured.
As shown in fig. 3, the front-back cap removing and replacing machine of the present invention is in an initial state before cap removing (clockwise cap removing), the upper cover and the upper turntable are omitted in the figure, the piston rod of the power cylinder 32 is in an pushing-out state, the piston rod of the damping cylinder 42 is in a retracting state, and the circular arc-shaped front end surfaces of the claws 21 cooperate to form a circular dismounting channel 7 capable of accommodating the electrode caps.
When the cap is detached in the forward direction (cap is detached in the clockwise direction), the power cylinder 32 drives the piston rod of the power cylinder to retract, the rotating ring 31 is driven to rotate clockwise, the rotating ring 31 rotates clockwise to drive the jaws 21 to rotate clockwise around the hinge shaft 212, so that the diameters of the corresponding side corners 213 of the jaws 21 are reduced to clamp the electrode cap in the disassembly channel 7 and drive the electrode cap to rotate clockwise relative to the electrode rod, the electrode cap is disassembled from the electrode rod, and then the power cylinder 32 drives the piston rod of the power cylinder to push out to an initial state before the cap is detached in the forward direction (cap is detached in the clockwise direction), the electrode cap is detached, and the forward direction cap detachment (cap detachment in the clockwise direction) process is completed.
When the cap is reversely disassembled (the cap is reversely disassembled), the piston rod of the cap is driven to retract through the power cylinder 32, the rotary ring is driven to rotate clockwise around the hinge shaft 212 by a certain angle, the piston rod of the damping cylinder 42 is driven to completely push out, the rotary disc 41 is driven to rotate anticlockwise around the circular arc-shaped groove 311 of the rotary ring 31 by the rotary disc 41 by a certain angle, the rotary angle range of the rotary disc 41 driven by the damping cylinder 42 is the same as the rotary angle range of the rotary ring 31 driven by the power cylinder 32, so that the rotary angle of each claw 21 is counteracted, the front end face of each claw 21 still cooperates to form a circular disassembly channel 7 capable of accommodating the electrode cap, the state is an initial state before the cap is reversely disassembled (the cap is reversely disassembled), then the piston rod is driven to push out through the power cylinder 32, the rotary ring 31 is driven to rotate anticlockwise, the claws 21 can be driven to rotate anticlockwise around the hinge shaft 212, the diameter of the corresponding side corners 213 of each claw 21 is reduced, the electrode cap in the disassembly channel 7 is held tightly, and the electrode cap is driven to rotate anticlockwise relative to the electrode rod, and then the electrode cap is disassembled from the electrode rod, the power cylinder 32 is disassembled, and then the cap is reversely disassembled (the cap is reversely disassembled after the cap is driven to the cap is reversely disassembled).
The present invention is not limited to the examples and the drawings, but particularly to the shapes of the front and back cap removing and replacing machine in the drawings, which are more beautiful, although the shapes are not technical points of the protection and protection of the present invention, other embodiments and drawings thereof, which are obtained by modifying, equivalent replacing, improving, etc. the present invention is within the protection scope of the present invention as long as one of ordinary skill in the art does not pay creative effort according to the present invention.
Claims (9)
1. The front end face of each claw is respectively hinged with the inner ring of the rotating ring around a first axial direction, the front end face of each claw surrounds a disassembly channel, the rotating disc is arranged on the side face of the grabbing cap assembly, each claw is respectively hinged with the rotating disc around a second axial direction, the first axial direction and the second axial direction are arranged at intervals and are parallel to the axis of the rotating ring, through holes which are communicated with the disassembly channels for the passage of the electrode cap are formed in the two sides of the shell and the rotating disc, the rotating ring can drive each claw to rotate around the second axial direction, the diameters of the corresponding sides of the claws are reduced to jointly envelop the electrode cap in the disassembly channels and drive the electrode cap to rotate,
the first driving mechanism comprises a power cylinder and a first connecting component, the power cylinder is fixedly connected with the shell, and a piston rod of the power cylinder is connected with the periphery of the swivel through the first connecting component and can drive the swivel to rotate in a reciprocating manner; the second driving mechanism comprises a damping cylinder and a second connecting component, the damping cylinder is fixedly connected with the shell, a piston rod of the damping cylinder is connected with the periphery of the rotary table through the second connecting component and can drive the rotary table to reciprocally rotate, and the rotating angle range of the rotary table driven by the damping cylinder is the same as the rotating angle range of the rotary ring driven by the power cylinder.
2. The positive and negative cap removing and replacing machine according to claim 1, wherein the first connecting assembly comprises a first connecting rod and a first force arm rod, one end of the first connecting rod is hinged with a piston rod of the power cylinder, the other end of the first connecting rod is hinged with one end of the first force arm rod, and the other end of the first force arm rod is fixedly connected with the periphery of the swivel; the second connecting assembly comprises a second connecting rod and a second force arm rod, one end of the second connecting rod is hinged with a piston rod of the damping cylinder, the other end of the second connecting rod is hinged with one end of the second force arm rod, and the other end of the second force arm rod is fixedly connected with the periphery of the rotary disc.
3. The positive and negative cap removing and replacing machine according to claim 2, wherein the damping assembly comprises two turntables, the two turntables are respectively located on the upper side and the lower side of the cap grabbing assembly, the two turntables are fixedly connected through a connecting column, the claw and the swivel are located between the two turntables, and the other end of the second connecting rod is respectively hinged with the second force arm rods of the two turntables.
4. The positive and negative cap removing and replacing machine according to claim 3, wherein two lantern rings are further arranged in the shell, the two lantern rings are respectively sleeved on the peripheries of the two turntables to radially limit the turntables, outer end faces of the lantern rings are respectively fixedly connected with the shell, inner end faces of the lantern rings are abutted against end faces of the turnrings to axially limit the turnrings, and grooves for the second force arm rods of the corresponding turntables to pass through and rotate in are formed in the side faces of the lantern rings.
5. The positive and negative cap changer of claim 4, wherein one side of the collar adjacent to the insertion side of the housing has a thickness less than that of the opposite side, and the insertion side of the housing is provided with a slot communicating with the removal channel such that the insertion side of the housing has a thickness less than that of the opposite end.
6. The positive and negative cap removing and replacing machine according to any one of claims 1 to 5, wherein the front end surface of the claw is of a concave arc structure, and both ends of the concave arc structure form the corner.
7. The positive and negative cap remover according to any of claims 1-5, wherein the rear ends of the jaws are hinged to the inner ring of the swivel in the following manner: the rear end of the claw is convexly extended into a circular arc-shaped bulge, the inner ring of the swivel is provided with a corresponding circular arc-shaped groove, and the circular arc-shaped bulge is embedded into the circular arc-shaped groove and can rotate relatively.
8. The positive and negative cap remover according to any of claims 1-5, wherein the jaws are hinged to the turntable in the following manner: the middle part of the claw is provided with a hinge shaft, the turntable is provided with a corresponding shaft hole, and the claw is hinged with the turntable through the cooperation of the hinge shaft and the shaft hole.
9. The positive and negative cap remover according to any one of claims 1-5, further comprising an electrode cap sensor fixedly mounted to the housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811030633.1A CN108972446B (en) | 2018-09-04 | 2018-09-04 | Machine for replacing cap in front and back |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811030633.1A CN108972446B (en) | 2018-09-04 | 2018-09-04 | Machine for replacing cap in front and back |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108972446A CN108972446A (en) | 2018-12-11 |
| CN108972446B true CN108972446B (en) | 2023-09-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811030633.1A Active CN108972446B (en) | 2018-09-04 | 2018-09-04 | Machine for replacing cap in front and back |
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| CN (1) | CN108972446B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110871320A (en) * | 2018-09-04 | 2020-03-10 | 广州市极动焊接机械有限公司 | Electrode dismounting device for spot welding |
| CN111015584A (en) * | 2019-12-10 | 2020-04-17 | 上汽大众汽车有限公司 | Cap remover for removing electrode cap |
| CN111151859B (en) * | 2020-01-19 | 2023-12-29 | 广州市极动焊接机械有限公司 | Electrode cap changing machine |
| CN111136373B (en) * | 2020-01-19 | 2024-01-02 | 广州市极动焊接机械有限公司 | Floating electrode cap replacing machine |
| CN111299788A (en) * | 2020-03-17 | 2020-06-19 | 南京君哲工业自动化有限公司 | Mechanism for replacing electrode cap based on pneumatic drive |
| CN114799446A (en) * | 2022-05-27 | 2022-07-29 | 江苏北人智能制造科技股份有限公司 | Structure for automatically replacing electrode cap of spot welding gun |
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|---|---|
| CN108972446A (en) | 2018-12-11 |
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